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https://issues.apache.org/jira/browse/YARN-710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13664454#comment-13664454
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Alejandro Abdelnur commented on YARN-710:
-----------------------------------------

If you don't have the tag interface, how you'll decide which public API records 
are 'serializable' ?
                
> Add to ser/deser methods to RecordFactory
> -----------------------------------------
>
>                 Key: YARN-710
>                 URL: https://issues.apache.org/jira/browse/YARN-710
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: api
>    Affects Versions: 2.0.4-alpha
>            Reporter: Alejandro Abdelnur
>            Assignee: Alejandro Abdelnur
>         Attachments: YARN-710.patch
>
>
> I order to do things like AMs failover and checkpointing I need to serialize 
> app IDs, app attempt IDs, containers and/or IDs,  resource requests, etc.
> Because we are wrapping/hiding the PB implementation from the APIs, we are 
> hiding the built in PB ser/deser capabilities.

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